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Why any dipole placed in an uniform electric field only rotates about its position and does not move?

Why any dipole placed in an uniform electric field only rotates about its position and does not move?

Grade:12

2 Answers

Arun
25750 Points
3 years ago
When an electric dipole is places in a uniform electric field , it experiences no force as the electric force on both the negative and the positive charge are equal in magnitude but opposite in direction so they cancel out. But , it experiences a torque(couple) and hence it rotates.
kuldeep
136 Points
3 years ago
since net force is zero in uniform electric field on dipole so there is no movement of com but there is a torque generated which will make it move in a rotational motion

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